// export const name = 'lison'
// export const age = 18
// export const address = 'beijing'
// const username = 'lison'
// const age = 18
// const address = 'beijing'
// export {
//   username,
//   age,
//   address
// }

// function name() {}
// class B {}
// const b = ''
// export {
//   name as getName,
//   B as classB,
//   b as string
// }